30
Reference Manual
00809-0100-4840, Rev CB
February 2015
9.
Press the red button
to save the new value if it is correct, or press the blue button
to
not save. Afterwards, depending on the button pressed, either the “20” menu or the
next menu appears.
4.3.5
Setting the output damping (on the 3101)
Screen display:
d
Default: 10
The damping value is a time constant in seconds, and is applied as smoothing to the level
reading and the output current. A new value may be entered up to 999 seconds. A larger value
will have the effect of smoothing out rapid changes of level, and smooth out the effects of
turbulence and ripples on the liquid surface. (It would be unusual to select a value greater than
30 seconds).
A value of zero may be edited, in which case no smoothing is applied to the Current Output and
transmitter readings immediately change the output.
Note
The Rosemount 3101 transmits nominally at once per second. Therefore, a damping time of
zero will not necessarily give an immediate response.
Note
for a map of the programming menu structure and how to access all
the menu options.
To change the output damping
1.
If entering the menu system from the PV display, press the green button
repeatedly
until the “d” menu option is indicated (see the above note).
2.
Press the blue button
to enter the menu “d”. The display indicates the present
damping value.
3.
If this value is correct, press the red button
and then the green button
to get to the
next menu option. Otherwise, continue with step (
4.
Press the blue button
to start editing. The first digit flashes to indicate it can be
edited.
5.
Press the green button
repeatedly to edit the flashing digit.
6.
Press the blue button
to select the next digit. The digit flashes to indicate it can be
edited.
7.
Repeat steps (
) until the last digit is flashing, and edited as required.
8.
Press the blue button
to confirm the new damping value. None of the digits should
now be flashing.
9.
Press the red button
to save the new value if it is correct, or press the blue button
to
not save. Afterwards, depending on the button pressed, either the “d” menu or the
next menu appears.
Содержание Rosemount 3101
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